3-4 devices sharing the same IRQ?!?!?

Ask a question about your computer setup.
Post Reply
Phoebus
New visitors - please read the rules.
Posts: 14
Joined: Sun May 26, 2002 6:41 pm

Fri Jun 14, 2002 2:36 pm

Hi.

I was having this problem with WinXP and now with Win2K.

I have 3 devices sharing the same IRQ (11) and when I Enable USB from BIOS that also shares the same IRQ. I have tried moving my devices to different PCI slots but the problem is still there.

The other thing is that Windows won't allow me to change those settings, neither will BIOS give me manual control over IRQ settings.

My mobo is a Shuttle AV61. Any ideas?!

Thanx!
ajzchips
El cheapo dude
Posts: 3048
Joined: Sat Mar 23, 2002 12:41 pm
Location: Madrid, Spain

Fri Jun 14, 2002 3:33 pm

Welcome to the wonderful world of ACPI.

Don't worry. I have 6 devices sharing IRQ11 in my Win2K, namely:
1. ATi RAGE FURY 16MB (AGP VGA)
2. Adaptec AHA-2940U2W-Ultra2 SCSI (PCI)
3. ALi USB Host Controller (onboard)
4. OPTi USB Host Controller (PCI)
5. Creative SB Live! (PCI)
6. Leadtek TV2000 Video Capture (PCI)

Absolutely no problems here, except some occasional jerky movement when watching DVDs and other videos when my SCSI disks are accessed (Adaptec's SCSI cards are quite bus-hungry), but practically solved after a SCSI BIOS update :)

Note: when I had a SUPRA modem (PCI), before moving to ADSL, it ALSO used IRQ11, so that totalled 7 devices. And everything worked ok.
ajzchips
El cheapo dude
Posts: 3048
Joined: Sat Mar 23, 2002 12:41 pm
Location: Madrid, Spain

Fri Jun 14, 2002 3:33 pm

I forgot to ask: what "problem" are you actually experiencing? Or you're just worried about devices sharing the same IRQ?
Phoebus
New visitors - please read the rules.
Posts: 14
Joined: Sun May 26, 2002 6:41 pm

Fri Jun 14, 2002 3:54 pm

Problems...

System crashes, reboots, freezes, or won't boot. Also, corrupt files, explorer errors... these are some of the problems! :)
ajzchips
El cheapo dude
Posts: 3048
Joined: Sat Mar 23, 2002 12:41 pm
Location: Madrid, Spain

Fri Jun 14, 2002 4:23 pm

Why don't you try installing with ACPI disabled? Although I wouldn't really recommend that, but you'd then be able to manually assign IRQs.

Which cards of yours are sharing IRQ11? I used to have problems until I updated my SCSI card's BIOS.

I'd update your motherboard's BIOS, cards' BIOS (if applicable) and drivers, etc.
Rainbow
The UniFlasher
Posts: 3122
Joined: Wed Mar 20, 2002 4:16 pm
Location: Slovakia
Contact:

Fri Jun 14, 2002 7:31 pm

Have you tested the memory? Get some drivers and patches for the VIA chipset.
Patched and tested BIOSes are at http://wims.rainbow-software.org
UniFlash - Flash anything anywhere
Phoebus
New visitors - please read the rules.
Posts: 14
Joined: Sun May 26, 2002 6:41 pm

Tue Jun 18, 2002 2:45 am

Well, with ACPI on, enabling USB in BIOS caused my system to restart right when Windows was about to load.

Replacing ACPI with Standard PC seems to have fixed the problem! Any thoughts on this...?!

Also, there's an option in my BIOS for "MS IRQ Table." What exactly is this?

Cheers,
Phoebus
soupy
Absentee administrator
Posts: 1086
Joined: Thu Mar 21, 2002 1:06 am
Location: Ontario, Canada
Contact:

Tue Jun 18, 2002 4:19 pm

With a VIA chipset, ditch the SB Live.
Flash your BIOS at your own risk.
ajzchips
El cheapo dude
Posts: 3048
Joined: Sat Mar 23, 2002 12:41 pm
Location: Madrid, Spain

Tue Jun 18, 2002 5:18 pm

Soupy.... I think you got our boards mixed up :)
Post Reply